JPS5216847A - Ventilating device - Google Patents

Ventilating device

Info

Publication number
JPS5216847A
JPS5216847A JP9206475A JP9206475A JPS5216847A JP S5216847 A JPS5216847 A JP S5216847A JP 9206475 A JP9206475 A JP 9206475A JP 9206475 A JP9206475 A JP 9206475A JP S5216847 A JPS5216847 A JP S5216847A
Authority
JP
Japan
Prior art keywords
ventilating device
whose
ridged
produced
low cost
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP9206475A
Other languages
Japanese (ja)
Inventor
Sakae Kamata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9206475A priority Critical patent/JPS5216847A/en
Publication of JPS5216847A publication Critical patent/JPS5216847A/en
Pending legal-status Critical Current

Links

Landscapes

  • Ventilation (AREA)

Abstract

PURPOSE: To provide a sewer pipe whose pipe wall section is ridged so as to have a large resistance force against pressure, and whose material is made thin so as to be produced at low cost and be light-weight.
COPYRIGHT: (C)1977,JPO&Japio
JP9206475A 1975-07-30 1975-07-30 Ventilating device Pending JPS5216847A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9206475A JPS5216847A (en) 1975-07-30 1975-07-30 Ventilating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9206475A JPS5216847A (en) 1975-07-30 1975-07-30 Ventilating device

Publications (1)

Publication Number Publication Date
JPS5216847A true JPS5216847A (en) 1977-02-08

Family

ID=14044033

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9206475A Pending JPS5216847A (en) 1975-07-30 1975-07-30 Ventilating device

Country Status (1)

Country Link
JP (1) JPS5216847A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5160811A (en) * 1990-04-27 1992-11-03 Tyton Corporation Duct transition converter and flexible connectors including same
JPH05340557A (en) * 1992-06-05 1993-12-21 Mitsubishi Electric Corp Air conditioner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5160811A (en) * 1990-04-27 1992-11-03 Tyton Corporation Duct transition converter and flexible connectors including same
JPH05340557A (en) * 1992-06-05 1993-12-21 Mitsubishi Electric Corp Air conditioner

Similar Documents

Publication Publication Date Title
JPS52131035A (en) Throttle valve device
JPS5216847A (en) Ventilating device
JPS5240292A (en) Shift device
JPS53142769A (en) Inserting device of bar-like portion material
JPS5410543A (en) Door sealing member
JPS5316125A (en) Negative pressure delay valve
JPS5351644A (en) Air conditioner
JPS525009A (en) Sewer pipe
JPS5227955A (en) Gear reduction device
JPS525011A (en) Pipe joint
JPS51126502A (en) Ventilating quantity control unit
JPS51146816A (en) Pipe organ
JPS51140228A (en) Flow pipe supporter
JPS51143473A (en) Device to open and shut the shield of altor
JPS52144820A (en) Keeper for piping
JPS525012A (en) Pipe joint
JPS53112990A (en) Preparation of polymethyl methacrylate
JPS542160A (en) Portable watch
JPS524801A (en) Sound absorbing/diffusing system
JPS5327337A (en) Pipeline multiplier
JPS5292182A (en) Cutting device for steel pipes
JPS529780A (en) Pressure actuator
JPS51113961A (en) Floor scraping silo with basement
JPS5210723A (en) Portamento device
JPS52144819A (en) Coupling